Description: Compatible with: Sony L39h Xperia Z1 Battery Capacity: 3500mAh Material: ABS+PC Battery Type: Lithium-polymer battery Input Voltage: DC5V Input Current: 500mAh Output Voltage: DC5V Output Current : 800mAh DC Charging Time: about 6 hours Conversation Time: 89 hours Cycle Life: 500times Passed Validation: CEFCC Color: Black, White Features: Comes with a foldable stand for supporting your phone easily. Works as both an external Phone battery set and a protection case. Chargering\/sync ,simply plug in the USB turn micro USB to the micro USB female dock, connect the USB to a powered USB equipment or computer. The surface was soft, you can feel comfortable, quality upscale, retro flavor. Intelligent Protection Functions: has overcharge, discharge, overload, short circuit and other protection functions. Package Includes: 1 x 3500mAh Backup Battery Charger Case for Sony L39h Xperia Z1 More details: